Adjustable handle-bar.



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' ICDNARD M. LANDIS, OF TOLEDO,

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ADJUSTABLE i-IANDLE-BR SFEGIFIGATION forming' part of Letters Fatent No.657,290, dated. September 4c, 1900'.

Application filed March 18, 1899.

Be it known that l, EDWARD' M. LANDis, of Toledo, county oi' Lucas, andState of Ohio, have invented certain new and useful lmprovements in.fidliustable Handle-Bars; and I do hereby declare that the followingisa full, clear, and exact description of the invention, which will enableothers skilled in the art to which it appel-talus to make and use thesame, reference being had to the accompanying drawings, and to thefigures of reference marked thereon, which Yform part of thisspeciiieation.

YLily invention has reference to an adjustable handle-bar for bicyclesor other vehicles,

and has for its object io provide an improved,0

and novel construction lfor locking the harsections against rotation.

My invention is designed to be employed l in that class of bars in whichthe ends of the bar-sections are formed' with intermeshing teeth wherethere is a simultaneous movement ot both bar-sections, the movement ofone bar operating the other.

A further object of my invention is to so dispose the parts thereof thatthe symmetry of the bar will be maintained, permitting the use of thewell-known form of the ordinary drop bar.

With vthese objects in parts ,and combination of parts hereinaftershown, described, and claimed.

In the drawings, Figure 1 is a perspectiveA view of my bar havingtherein the-iinproied locking device. Fig. 2' is an enlarged View, aportion oi the bar being cutaway to disclose the locking device, theends of the barsections, the locking dogs, and the screwt'hrendod siembeingl shown in full lines.` Fig.

f3 is a' plan view to shoiv the relative position l of the intermeshingends et' the bar-sections, also showing the bolts upon which thebarse'ctions hinge and the grooves on the ends of the' sections for thereception of the screw- Fig. 4 is an elevation of the locking-stem,`showing theright and left hand threads thereon, also showing the knuriand square head en the end thereof. iiig. 5 is a pian View of one ofthedogs, showing the parallel sections thereon. Fig. G is an elevation ofone of the bolts upon which Vthe bar-sections hinge. i

view I employ theV 1 is a handle-bar postA adapted to beinser'ti ed inthe bicycle-fori; stem 2 is a forked member on the end of the stem 1,having apertures 3 for the reception of bolts tand 5, respectively, uponwhich hinge handle-bar sections 6 and 7, the ends of the sections beingformed 'with intermeshing-gear members 8 and 9.l

10 and 11, respectively, are dogs having on oneof their sides at 12 and13 teeth or serrations correspondingto the teeth 14 of the gear members8 and 9.. 1

15 is a screw-threaded locking-stem having thereon a right-hand thread16 to engage the correspondingly-threaded dog 11 and 'a left-hand thread17 to engage the interiorlythreaded dog 10.

18 is a knurl on mounted by a square head 19 for the reception of awrench. The thread 16 is made of a diameter' to permit of its passagethrough the opening in dog 10. The handle-bar post is formed solid at 2Oto serve as a rest for the lower dog 11 and is bored out at 21 to form aguide for the lower end of the screw-threaded locking-stem 15. Thegearinembers S and 9 are grooved out at 22 and 23, respeetively,s`o thatwhen assembled a passage-way and guide will be formed for the portion 24of the screw stem 15.

l'n/"peration the parts are properly assembied, as shown in- Fig. 2. TheVlocking-stein 4is given a left-hand rotation, causing the dogs thereonto recede from the gear members'S and 9. The handle-bar sections arethen adjusted to the desired position, ing given a dogs to engage thegear members and hold them rigidly in position. It will be seen byobserving iig. 2 that the dogs practically couple the bars together. TheSections can even be removed from the forked mem by withdrawng'bolts 4and 5 and stili be held rigidly together. It will be.seen from this theend of stem 15, sur-- and the loci;- right-hand rotation, causing theber2y means for locking'the bars against rotation.

. The essential feature of invention is that there -be a positivemovement of the dogs, the one toward the other, to engage the gear. mem

bers.

It is evident that I may dispense with the screw-threaded locking-stem15-entirely and IOC employinstead alocking-stem screw-threaded boltssecured therein in parallel relation, the

on the lower end thereof to engage the lower handle-bar sections plvotedupon said bolts dog and having-a cam-lever on the upperend vand providedupon their adjacent ends With 25 thereof toengagetheuppersideofdogl0,said intermeshing teeth andahned grooves, an

5 dog being'formed wit an opening to permit upper and alowerlocking-dog, provided with the free passage of the stemtherethrough. serrations adapted to engage the teeth of the hat claimis* handle-bar seetions,alockingstem, provided In an adjustablehandle-bar for bicycles with a left-hand thread of large diameter 3o orother vehicles, handle-bar sections having and a`righthand thread ofsmaller diameter zo intermeshing members on the adjacent ends adapted toen ter interorl -threaded perforathereof, bolts passing through saidmembers tions 1nv the dogs, so as to bring them into 15 secured saidbolts; dogs engaging said members, a right and left hand threadedscrewstem to bring said dogs in engagement with said members, andgrooves on said members, acting as a guide to said screx -thread'edstem,

zo substantially as shown and described.

In an adjustable bicycle handle-bar, the stem bifureated at it's upperend, a pair of as shown and described.

In testimony that I claim the foregoing as my own I ax my signature inpresence of two witnesses.

A EDWARD M. LANDIS. Witnesses:

`v BERTRAND G. JUDGE,

.TACQB B. LANDIS.

